This question came up a couple of times from users so I figured I'll document how to achieve a layout that shows a list of items and allows you to pick an item from this list to show the details of this item on the same page.
The default layout that ABCS creates is a list on one page with the ability to select an item and go see the details or edit that record on another page.
To combine the two into a single page, start from the edit or the details page that ABCS created.
On this page you then add the table or list for the same object, and set the link on a field to do the edit or details - this basically means that you'll do a navigation to the same page.
If you now run the page you'll be able click items in the table and see their details on the same page.
Here is a quick demo of how it is done:
Note that if you want this to be the default view that people see when navigating to your app - just update the navigation menu of your application to reflect this.